---
title: "KeyFob I2C Converter with Dual Serial to 16-Port I2C"
url: "https://maker.wiznet.io/louis_m/resellers/keyfob-i2c-converter-with-dual-serial-to-16-port-i2c/"
markdown_url: "https://maker.wiznet.io/louis_m/resellers/keyfob-i2c-converter-with-dual-serial-to-16-port-i2c/md"
type: "VAR: Value-Added Reseller Products"
author: "ncd"
author_url: "https://store.ncd.io/product/keyfob-i2c-converter-with-dual-serial-to-16-port/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "ncd"
original_url: "https://store.ncd.io/product/keyfob-i2c-converter-with-dual-serial-to-16-port/"
published: "2022-08-31"
language: "en"
hardware: ["WIZnet W5500"]
likes: 3
views: 1311
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# KeyFob I2C Converter with Dual Serial to 16-Port I2C

> KeyFob I2C Converter with Dual Serial to 16-Port I2C

Original author: ncd (source: https://store.ncd.io/product/keyfob-i2c-converter-with-dual-serial-to-16-port/)

## Components

- **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500))

WIZnet parts: W5500 ([Datasheet](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/datasheet?utm_source=maker&utm_medium=project&utm_campaign=w5500), [product hub](https://maker.wiznet.io/products/w5500/))

## Article

- KeyFob I2C Converter with Macro Trigger Functions

- Secure KeyFob Remote Operation up to 700 Feet Away

- 16-Port Master Hardware I2C Converter

- KeyFob Receiver with Macro Trigger Functions

- Dual Communications Interface Ports

- Choice of Two Communication Modules

- Communicates with Two PCs Simultaneously

- Supports Many Communication Expansion Options Including:
  - Ethernet, WiFi TCP/IP, and WiFi MQTT
  - Bluetooth, RS-485, RS-232, and Long Range Wireless

- Sixteen 5V nodeLynk I2C Communication Ports

- 2-Amp Power Supply Shared Among All 16 nodeLynk I2C Ports

- I2C Bus Scanning, I2C Write, and I2C Read Commands

- I2C Port Switching and I2C Write Read Commands

- Test, Control, and Learn I2C Communications

- Connect Sensors for Monitoring Applications

- Control Relays, Pumps, Lights, and More

- Long-Range Wireless I2C Upgrade Option

- Integrated ProXR Enterprise Command Set

---

Source: https://maker.wiznet.io/louis_m/resellers/keyfob-i2c-converter-with-dual-serial-to-16-port-i2c/